thunder
1. thun.der \'th*n-d*r\ n [ME thoner, thunder, fr. OE thunor; akin to OHG
thonar]thunder, L tonare to thunder 1a: the sound that follows a flash of
lightning and is caused by sudden exp ansion of the air in the path of the
electrical discharge archaic 1b: a discharge of lightning : THUNDERBOLT
2: a loud utterance or threat 3: BANG, RUMBLE
2. thunder \-d(*-)rin\ \-d*r-*r\ vb or thun.der.ing 1a: to produce thunder
- usu. used impersonally {it ~ed} 1b: to give forth a sound likened to
thunder {horses ~ed dow n the road} 2: ROAR, SHOUT 1: to utter loudly :
ROAR 2: to strike with a sound likened to thunder - thun.der.er n